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54ACTQ16240F View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
54ACTQ16240F 16-Bit Inverting Buffer/Line Driver with TRI-STATE Outputs National-Semiconductor
National ->Texas Instruments National-Semiconductor
54ACTQ16240F Datasheet PDF : 6 Pages
1 2 3 4 5 6
Functional Description
The ’ACTQ16240 contains sixteen inverting buffers with
TRI-STATE standard outputs. The device is nibble (4 bits)
controlled with each nibble functioning identically, but inde-
pendent of the other. The control pins may be shorted to-
gether to obtain full 16-bit operation. The TRI-STATE outputs
Logic Diagram
are controlled by an Output Enable (OEn) input for each
nibble. When OEn is LOW, the outputs are in 2-state mode.
When OEn is HIGH, the outputs are in the high impedance
mode, but this does not interfere with entering new data into
the inputs.
Truth Tables
Inputs
OE1
L
I0– I3
L
L
H
H
X
Inputs
OE2
L
L
H
H = High Voltage Level
L = Low Voltage Level
X = Immaterial
Z = High Impedance
I4– I7
L
H
X
Outputs
O0– O3
H
L
Z
Outputs
O4– O7
H
L
Z
OE3
L
L
H
OE4
L
L
H
DS010924-3
Inputs
I8– I11
L
H
X
Inputs
I12– I15
L
H
X
Outputs
O8– O11
H
L
Z
Outputs
O12– O15
H
L
Z
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